Marlin 1.1.4 w/ Viki2 LCD on RAMPS

[LuckyImperial]

Alright Roxy, I'm giving Marlin 1.1.4 a shot, but I'm having issues getting the code to compile with my somewhat unique Panucatt Viki2 LCD.

Arduino: 1.8.3 (Windows 7), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"
C:\Users\zmoore\Downloads\170709 Marlin-1.1.4\Marlin\Marlin.ino:39:28: fatal error: LiquidTWI2.h: No such file or directory
     #include <LiquidTWI2.h>
                            ^
compilation terminated.
exit status 1Error compiling for board Arduino/Genuino Mega or Mega 2560. 

What's odd is, I've already downloaded and included into the /170709 Marlin-1.1.4/Marlin/ directory LiquidTWI2.h and LiquidTWI2.cpp from here: https://github.com/lincomatic/LiquidTWI2
but I'm still getting the error message. Am I putting it in the wrong spot or something? I don't see Wire.h in any of my directories, which is right above LiquidTWI2.h in the Marlin ino file.

Another detail to note: In the Arduino IDE prompt, the Wire.h text is colored orange which indicates it's actually linked to something(?), while the LiquidTWI2.h text is black.

My whole Marlin package can be downloaded here for testing:
https://1drv.ms/f/s!Aqg7KdDBqulRkHyb5w4CF-edx1DG

I'm compiling with the latest IDE 1.8.3.